AB-557-03-HCHC-S-L-C-T

Overview

The AB-557-03-HCHC-S-L-C-T is a crystal-less PCI Express dual output ultra miniature SMD clock generator from the Pure Silicon™ series. It operates on a supply voltage of 2.25V to 3.6V with a maximum frequency of 460MHz. The device features HCSL outputs and is housed in a 14-pin QFN package (3.2 x 2.5 x 0.85 mm). It supports an operating temperature range of -40°C to +85°C, consumes up to 60mA enabled current, and includes tri-state functionality for power management.

Feature Summary

• Crystal-less MEMS technology providing shock and vibration immunity
• Dual differential HCSL outputs with low jitter performance
• Wide supply voltage range: 2.25V to 3.6V
• RoHS/RoHS II compliant with MSL Level 1

Applications

• PCI Express Gen1, Gen2, & Gen3 systems
• Storage Area Networks (SAN)
• Passive Optical Networks (PON)
• Ethernet applications (1G, 10GBASE-T/KR/LR/SR, FCoE)

Procurement Notes

Verify the package type against the model suffix. The datasheet specifies the AB-557-03 series uses a 14-pin QFN package. Confirm that the 'F' suffix in standard part numbers corresponds to this QFN form factor rather than other available packages.

Selection Notes

Select based on required output format and temperature grade. The 'HC' suffix indicates HCSL output format. Ensure the application requires the -40°C to +85°C temperature range ('L' suffix) and verify if the standard ±100ppm stability meets system requirements or if tighter tolerance options are needed.

Part Context

This component belongs to the AB-557-03 series of Pure Silicon™ clock generators manufactured by Abracon LLC. These devices utilize Discera MEMS technology to replace traditional quartz crystals, offering solid-state reliability and reduced size for high-speed digital interfaces.

Replacement Considerations

For frequencies other than 100MHz, consider using the ASEMDxx series. Verify pinout compatibility when substituting with other crystal-less clock generators from different manufacturers.